2016 IEEE P802.15-15-0412r13

IEEE P802.15Wireless Personal Area Networks

Project IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Title TG3d Evaluation Criteria

Date Submitted

15 March 2016

Source Sebastian Rey (editor),Technische Universität BraunschweigSchleinitzstr. 22,38106 Braunschweig, Germany

Voice: +49 531 391 2439 Fax: +49 531 391 5192 E-mail: rey@ifn.ing.tu-bs.de

Re: []

Abstract This document is the TG3d evaluation criteria document.

Purpose This is a working document which will provide guidance how proposals have to be assessed to be considered in the selection process for a Draft Standard for TG P802.15.3d.

Notice This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.

Release The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15.

Submission Page Sebastian Rey, TU Braunschweig

2016 IEEE P802.15-15-0412r13

List of contributorsSebastian Rey TU BraunschweigThomas Kürner TU BraunschweigTuncer Baykas Istanbul Medipol UniversityKe Guan Beijing Jiaotong UniversityIwao Hosako NICTAkifumi Kasamatsu NICTHioryo Ogawa NICT

Submission Page Sebastian Rey, TU Braunschweig

2016 IEEE P802.15-15-0412r13

Table of Contents

1. Introduction..................................................................................................................................42. References....................................................................................................................................43. General Solution Criteria.............................................................................................................5

3.1. Technical Feasibility.............................................................................................................53.1.1. Manufacturability..........................................................................................................53.1.2. Time to Market..............................................................................................................5

3.2. Scalability.............................................................................................................................54. MAC Protocol Supplements........................................................................................................5

4.1. Alternate PHY Required MAC Enhancements and Modifications......................................55. PHY Layer Criteria......................................................................................................................6

5.1. Operational Frequency and Bandwidth................................................................................65.2. PHY-SAP Payload Bit Rate and Data Throughput..............................................................6

5.2.1. Gross Bit Rate................................................................................................................65.2.3. Data Throughput............................................................................................................6

5.3. Regulatory Requirements, Co- and Cross-Channel Interference.......................................65.4. System Performance, Modulation and Error Correction.....................................................75.5. Link Budget..........................................................................................................................85.6. Power Consumption..............................................................................................................85.7. Antenna Parameters and Beam Steering...............................................................................9

Submission Page Sebastian Rey, TU Braunschweig

2016 IEEE P802.15-15-0412r13

1. Introduction This document and the TG3d Technical Requirements Document (TRD) [TRD] provide the technical content for the project to develop an alternate physical layer (alt-PHY). This alt-PHY shall be a supplement to the IEEE 802.15.3-2003 Standard. This Evaluation Criteria Document references the IEEE 802.15.3-2003 Standard [15.3].

Within this document the criteria for the evaluation of the alternate PHY Draft Proposals are summarized. In order to accurately and consistently judge the submitted proposals, technical requirements are needed that reflect the application scenarios as described in the TG3d Application Requirements Document (ARD) [ARD].This working document will become the repository for the requirements to be used in the selection process for a PHY Draft Standard for P802.15.3d. The criteria presented in this document are based on the TG3d Technical Requirements Document (TRD) [TRD], which takes precedence, and may also contain more general marketing requirements on which the proposers are asked to comment.This document is divided into three sections: General Solution Criteria, MAC Protocol Supplements Criteria, PHY Layer Criteria.

Throughout the document the proposers are asked to provide parameters and performance measures related to their proposal. The proposers are only required to provide these values for the portions of the system that are covered in their proposal.

It is recognized that physical implementations and/or measurements are not required. Only simulations and calculations are required in order to provide all characteristics required in this document.

2. References [15.3] IEEE 802.15.3-2003 Standard1

[TRD] IEEE P802.15-14-0309-20 TG3d Technical Requirements Document[ARD] IEEE P802.15-14-0304-16, TG3d Application Requirements Document[CMD] IEEE P802.15-14-0310-19 TG3d Channel Model Document[CIR] IEEE IEEE P802.15-16-0207-0

How_to_derive_the_Channel_Impulse_Response_from_a_broadband_Channel_Transfer_Function

3. General Solution Criteria This section defines the technical and marketing system level concerns of the proposals.

1 A revision of this standard in IEEE P802.15.3m is currently in Sponsor Ballot Recirculation. As soon as this project is completed the new revision of IEEE 802.15.3 will become the new baseline.

Submission Page Sebastian Rey, TU Braunschweig

2016 IEEE P802.15-15-0412r13

3.1. Technical Feasibility This is intended to determine if the proposal is real or academic. Proposers will be asked to comment on criteria listed in the following sections.

3.1.1. ManufacturabilityManufacturability is defined in terms of the use of available, cost effective manufacturing processes with evidence of effective production capability, with respect to the time line of the standard. The proposers are asked to submit proof of the claims by way of expert opinion, models, experiments, pre-existence examples, or demonstrations.

3.1.2. Time to MarketTime to Market addresses the question of when the proposed technology will be ready for market. The proposal shall include an estimate of a schedule for when the PHY would be available for market.

3.2. Scalability Scalability refers to the ability to adjust important parameters, such as those mentioned below, (if they are required by the applications) without rewriting the standard. The modified MAC should be able to support the scaling of the PHY.

Scalability parameters include; power consumption, PHY-SAP Payload Bit Rate and Data Throughput, complexity, range, frequencies of operation, occupied bandwidth of operation, and other functions deemed appropriate. Providing parameters such as power consumption and complexity estimates are not mandatory.

4. MAC Protocol Supplements

4.1. Alternate PHY Required MAC Enhancements and Modifications Supplements and modifications to the MAC may be required to accommodate the alternate PHY. The modified MAC should stay backwards compatible to the current IEEE 802.15.3-2003 MAC as amended by IEEE 802.15.3b MAC and IEEE 802.15.3c. Modifications to the MAC for close-proximity applications are currently proposed by Task Group 3e. If Task Group 3e finishes a standard in advance of Task Group 3d the MAC should stay backward compatible to Task Group 3e for the applications considered within Task Group 3e.

Proposals should justify and explain the supplements and modifications that become necessary in support of the new alternate PHY.

Submission Page Sebastian Rey, TU Braunschweig

2016 IEEE P802.15-15-0412r13

5. PHY Layer Criteria

5.1. Operational Frequency and Bandwidth Proposal shall include the carrier frequency and the bandwidth of the transmitted signal.

5.2. PHY-SAP Payload Bit Rate and Data Throughput

5.2.1. Gross Bit RateThe Gross Bit Rate is defined as the bit rate at which bits are transmitted over the radio link including all overhead data like stuffing bits, tail symbols, etc. For IEEE Std 802.15.3-2003, examples of optional gross bit rates at the PHY are 11, 33, 44, 55 Mb/s and the mandatory payload bit rate is 22 Mb/s.

The proposer shall provide the Gross Bit Rates supported by their proposal. Please bear in mind, that the mandatory data rates for the PHY-SAP as defined in clause 8 of [TRD] have to be met.

5.2.3. Data ThroughputThe proposer shall provide the supported net bit rate of their proposal. This is the Gross Bit Rate at the PHY-SAP reduced by all overhead data.

5.3. Regulatory Requirements, Co- and Cross-Channel Interference First priority is to protect the passive and the active services already identified in the ITU Radio Regulations in the frequency range of 252 GHz to 325 GHz. Additionally, coexistence between and inside the use cases should be ensured. For example an intra-device link should not be disturbed by a backhaul if the device is several meters away from the direct path of the backhaul. Since the sensitivity of the receiver at the victim is not specified the maximum tolerable interference is unknown. Therefore all proposals shall provide the field strength on a vertical (Phi=0°, Theta=0-359°) and a horizontal (Theta=90°, Phi= 0-359°) circle around the antenna of the transmitter with a resolution of one degree. The main direction of the antenna is directed in the direction of the x-axis (Theta=90°, Phi=0°, see Figure 1). Please note, that the antenna is not steered for this evaluation. The strongest side lobes of an antenna have to be covered in the evaluation on the two circles or must be presented in addition. The proposers shall provide the antenna beam patterns which are expected to be used.

For the Fronthaul and Backhaul use case three radii should be evaluated: 3 m, 10 m and 100 m. In the data center use case two radii are of interest: 1 m and 10 m. For the Intra Device and Close Proximity use case a worst case assessment of the emitted field strength at a short distance (less than 1 m) is sufficient as well as the evaluation as mentioned above with a radius of the circle of 1 m.

Submission Page Sebastian Rey, TU Braunschweig

2016 IEEE P802.15-15-0412r13

φ

θ

mainlobe x

y

z

Figure 1: Coordinate System

5.4. System Performance , Modulation and Error Correction The System performance refers to the ability of the system to successfully acquire and demodulate data packets at the required data rates and bit error rates, both in the free space AWGN channel and in the channels specified by the channel model document [CMD]. Several channel models from the [CMD] require the calculation of the Channel Impulse Response (CIR) from a Channel Transfer Function (CTF). For guidance on the correct transformation from CTF to CIR refer to [CIR].

Proposals shall describe all the necessary parameters, e.g. the modulation schemes, the forward error correction code, etc. For comparisons, the results of the following simulations in the equivalent baseband region shall be included in the proposals for an Additive White Gaussian Noise (AWGN) Channel only and the Channel Models (with AWGN) from [CMD]. All proposals will have to cope with RF impairments like e.g. phase noise, a non-linear transfer function of an amplifier due to saturation or I/Q imbalances. Therefore, proposals shall demonstrate the level of immunity to these impairments. Phase noise shall be modeled as 1/f noise.

Submission Page Sebastian Rey, TU Braunschweig

2016 IEEE P802.15-15-0412r13

PRBS Modulator BERDemodulatorAWGNRFImpairments

ChannelModel

Transmitter Receiver

Figure 2: Example of the architecture of the link level simulations.

Although the proposers may need to make alterations to the system setup in Figure 2 to more adequately reflect their proposal, the figure identifies the minimum expected level of detail regarding the transmission channel. The Transmitter and the Receiver may consist of several more blocks, e.g. Forward Error Correction (FEC) encoder and decoder, pilot generation, synchronization, equalization, etc. All assumed parameters have to be presented in the proposal, e. g. antenna gains, noise figures, etc.

Proposals shall at least include a figure which presents the required SNR for a Bit Error Rate (BER), without the proposed error correction, in the range of 10^-2 to 10^-6. The proposals have to provide evidence that the proposed error correction is suitable to match the requirements defined in the TRD and to state for which SNR this is expected. Ideally, this is also done with a figure which presents the required SNR for a BER in the range of 10^-4 to 10^-13.

5.5. Link Budget The link budget is used to determine the capabilities of the proposal under certain operating conditions, like specified data rates, ranges, and bit error rate. An example which identifies the necessary parameters and equations can be found in [TRD].Proposers shall complete that link budget table and identify and explain all assumptions. Although the proposers may need to make minor alterations to this table to more adequately reflect their proposal, the table identifies the minimum expected level of thoroughness, detail, and justification. A link budget has to be provided for each of the targeted use cases with distances according to the definitions of table 9.2 in [TRD] and consistent with the definitions in [CMD]. For the backhaul/fronthaul use caselink budgets have to be given for all channel models listed in table 5.6 in [CMD].

5.6. Power Consumption

Proposers shall report whether their proposed solution can be fully integrated. The proposers shall report on the overall power consumption of their proposed solutions.

Submission Page Sebastian Rey, TU Braunschweig

2016 IEEE P802.15-15-0412r13

5.7. Antenna Parameters and Beam Steering The required antenna size and form factor depends on the specific use case.

The antenna form factor shall be described with reference to expected size for the use cases. The antenna pattern has to be described in at least a horizontal and a vertical diagram (c.f. Co-Channel and Cross-Channel Interference).

Proposers shall indicate how the necessary beam steering can be applied. Furthermore, proposers have to provide information on the required precision for the antenna alignment and the impact on the system performance in terms of SNR (or gross data rate) of small misalignments.

Any additional information the proposer desires to provide on the antenna such as frequency response or on the beam steering approach would be beneficial.

Submission Page Sebastian Rey, TU Braunschweig